Vulnerability Description
Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.31.2, a broken access control vulnerability was identified in the ActionsController of the Avo framework. Due to insecure action lookup logic, an authenticated user can execute any Action class (descendants of Avo::BaseAction) on any resource, even if the action is not registered for that specific resource. This leads to Privilege Escalation and unauthorized data manipulation across the entire application. This issue has been patched in version 3.31.2.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/avo-hq/avo/releases/tag/v3.31.2
- https://github.com/avo-hq/avo/security/advisories/GHSA-qc5p-3mg5-9fh8
- https://github.com/avo-hq/avo/security/advisories/GHSA-qc5p-3mg5-9fh8
FAQ
What is CVE-2026-42205?
CVE-2026-42205 is a vulnerability with a CVSS score of 8.8 (HIGH). Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.31.2, a broken access control vulnerability was identified in the ActionsController of the Avo framework. Due to in...
How severe is CVE-2026-42205?
CVE-2026-42205 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42205?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.